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Old 02-25-2011, 02:18 AM   #22 (permalink)
Hubert Farnsworth
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Join Date: Feb 2011
Location: USA
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Planet Express Ship - '94 Geo Prizm LSI
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Quote:
Originally Posted by zonker View Post
this is true, but if the air was forced thru a throttle plate on a fuel injected car, the tps would still read the throttle opening as less than what air the engine is actually getting and deliver less fuel, much in the same way a large vacuum leak would, so you'd have a air/fuel mixture change that would reflect a leaner condition.

This is how DIY turbo kits added to a non-turbo designed motor/ecu contribute to engines that go clunk in the night.

granted, you would not need to go thru all that kind of hassle if you just reprogrammed the ecu...
And by running too lean you can guarantee complete combustion for the few cycles it lasts before the temperature and pressure exceed the designed limits of the engine and it fails due to the extremely lean mixture + standard high compression ratio (assuming an n/a engine, and not one modified with a reduced compression ratio + proper air charge cooler/intercooler to help reduce the intake temperatures below that of the base engine.
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